System and Method for Monitoring Health Status of a Gradient Coil

1. A system for monitoring a health status of a gradient coil disposed in a magnetic resonance imaging system, the system comprising: one or more sensors operative to obtain a parameter reading of the gradient coil, wherein the parameter reading includes at least one of an acoustic measurement and a back electromotive force measurement; and a controller in electronic communication with the one or more sensors and operative to: feed a training dataset to a neural network, wherein the training dataset includes a plurality of pairings each comprising of the parameter reading and a known health status of the gradient coil; train the neural network in a supervised manner on the training dataset such that, for one or more of the pairings, the neural network generates the health status that substantially matches the known health status.

2. A method for monitoring a health status of a gradient coil in a magnetic resonance imaging system, the method comprising: obtaining a parameter reading of the gradient coil via one or more sensors, wherein the parameter reading includes at least one of an acoustic measurement and a back electromotive force measurement; feeding a training dataset to a neural network, wherein the training dataset includes a plurality of pairings each comprising of the parameter reading and a known health status of the gradient coil; training the neural network in a supervised manner on the training dataset such that, for one or more of the pairings, the neural network generates the health status that substantially matches the known health status; and outputting one or more weights of the neural network after the neural network has been trained.

3. The system of claim 1 , wherein the controller is further operative to trigger an alarm when the health status exceeds a threshold.

4. The system of claim 1 , wherein the controller is further operative to prevent excitation of the gradient coil when the health status exceeds a threshold.

5. The system of claim 1 , wherein the one or more sensors include a microphone disposed proximate to the gradient coil and operative to obtain the acoustic measurement.

6. The system of claim 1 , wherein the one or more sensors includes a voltmeter operative to obtain the back electromotive force measurement.

7. The system of claim 6 , wherein the voltmeter is disposed within a gradient amplifier that drives the gradient coil.

8. The system of claim 7 , wherein the controller is operative to obtain the back electromotive force measurement via the voltmeter after the gradient amplifier has removed an excitation current from the gradient coil.

9. The system of claim 1 , wherein the the parameter reading further includes at least one of an impedance measurement, an inductance measurement, a resistance measurement, a strain measurement, a temperature measurement, an acceleration measurement, a B 0 drift measurement, and a terminal block torque measurement.

10. The system of claim 1 , wherein the controller is further operative to predict a time period when the health status will exceed a threshold.

11. The system of claim 1 , wherein the neural network is trained on a dataset that corresponds to one or more pulse sequences of one or more magnetic resonance imaging systems.

12. The method of claim 2 further comprising: triggering, via the controller, an alarm when the health status exceeds a threshold.

13. The method of claim 2 further comprising: preventing, via the controller, excitation of the gradient coil when the health status exceeds a threshold.

14. The method of claim 2 , wherein obtaining the parameter reading of the gradient coil via one or more sensors comprises: obtaining the acoustic measurement via a microphone disposed proximate to the gradient coil.

15. The method of claim 2 , wherein obtaining the parameter reading of the gradient coil via one or more sensors comprises: obtaining the back electromotive force measurement via a voltmeter disposed in a gradient amplifier that drives the gradient coil.

16. The method of claim 2 further comprising: predicting, via the controller, a time period when the health status will exceed a threshold.

17. A method of training a neural network, the method comprising: feeding a training dataset to the neural network, wherein the training dataset includes a plurality of pairings each comprising of a parameter reading and a known health status of a gradient coil, wherein the parameter reading is at least one of an acoustic measurement and a back electromotive force measurement; training the neural network in a supervised manner on the training dataset such that, for one or more of the pairings, the neural network generates a health status that substantially matches the known health status; and outputting, after the neural network has been trained, one or more weights of the neural network.